Ann has $198 more than her sister. After her mom gives Ann $20 and her sister $60, Ann has twice as much money as her sister. How much money did Ann have at first?

Answer 1

Ann = a
Sister =s
a = s + 198
a+20 =2(s+60)

Substitute
s + 198 +20 = 2s + 120
s + 218 = 2s +120
218-120= 2s -s
s = 98
Ann got $296